USN-4512-1

    Dashboard / Vulnerabilities / USN-4512-1

    USN-4512-1

    Published: 17 Sept 2020Last Modified: 22 Apr 2026

    Summary: util-linux vulnerability

    Details: It was discovered that the umount bash completion script shipped in util-linux incorrectly handled certain mountpoints. If a local attacker were able to create arbitrary mountpoints, another user could be tricked into executing arbitrary code when attempting to run the umount command with bash completion.

    References: https://ubuntu.com/security/notices/USN-4512-1, https://ubuntu.com/security/CVE-2018-7738

    Affected packages

    Package

    Name: util-linux

    Purl: pkg:deb/ubuntu/[email protected]?arch=source&distro=bionic

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -2.31.1-0.4ubuntu3.7

    Affected versions

    2.30.1-0ubuntu4
    2.30.2-0.1ubuntu1
    2.30.2-0.1ubuntu2
    2.30.2-0.1ubuntu3

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High